Desk clock



FIG. 1 is a front elevation view of a desk clock showing my new design, the indicated time being shown in broken lines for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a side elevation view of a first side thereof;

FIG. 3 is a side elevation view of a second side thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is front perspective view showing the desk clock of FIG. 1, the indicated time being shown in broken lines for illustrative purposes only and forms no part of the claimed design; and,

FIG. 6 is a rear perspective view thereof. 

The ornamental design for a desk clock, as shown and described. 